Online Geometric Shapes Calculator
Compute area, perimeter, volume, and surface area across 2D planar shapes and 3D solid geometry figures with clear mathematical formulas.
Shape Dimensions
Calculated Results
S = π × r²C = 2 × π × rd = 2 × rHow to use
- Select geometry figure type (circle, triangle, rectangle, trapezoid, sphere, cube, cylinder, cone, etc.).
- Enter known dimensions (radius, side lengths, heights, angles).
- Get instant calculated geometric values for area, perimeter, or 3D volume.
Supported Shapes & Solids
2D Shapes: square, rectangle, triangle, circle, rhombus, trapezoid. Evaluates surface area S and perimeter P.
3D Solids: cube, cuboid, sphere, cylinder, cone, pyramid. Evaluates volume V and total surface area S.
Calculation Methodology
Computations follow Euclidean planar geometry and classical stereometry theorems.
Frequently Asked Questions
Which geometric shapes can be calculated?
Key planar shapes (circles, triangles, polygons) and classical 3D solids (spheres, cubes, prisms, cones, cylinders).
What is the distinction between 2D and 3D shapes?
2D shapes exist on a flat plane (area and perimeter), while 3D solids have volumetric capacity and total boundary surface.
Can this tool assist with homework and school tasks?
Yes, it provides an ideal check for school and university geometry problems.
What measurement units should be used?
Any consistent metric or imperial unit (mm, cm, m, inches). Calculated areas and volumes match accordingly (sq and cubic units).
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